分解成质因数(如435234=251*17*17*3*2，据说是华为笔试题)

void prim(int m, int n) {

     if(m>n) {

         while(m%n != 0) n++;

         m /= n;

         prim(m, n);

         printf(“%d*”, n);

     }

}

int main(int argc, char* argv[]) {

     int n = 435234;

     printf(“%d=”, n);

     prim(n, 2);

}